not bat an eye

US /nɑt bæt ən aɪ/
UK /nɑt bæt ən aɪ/
"not bat an eye" picture
1.

눈 하나 깜짝하지 않다, 놀라지 않다

to show no surprise or concern when something unusual or shocking happens

:
When she heard the bad news, she didn't bat an eye.
그녀는 나쁜 소식을 듣고도 눈 하나 깜짝하지 않았다.
He told them he was quitting, and they didn't bat an eye.
그는 그만둔다고 말했지만, 그들은 눈 하나 깜짝하지 않았다.